On Sat, Sep 24, 2016 at 9:11 PM, Nick H wrote:
>
> Regarding null_square: If you want to make sure that null_square is passed
> by reference, you can define it as a top-level value. (That said, the
> record is so small, I doubt it would make a noticeable performance
> difference, unless you're pl
Re: your initial post... you could rewrite the code as
case Maybe.map .cell c of
Just (Letter s) ->
s
_ ->
""
Don't know if that's any easier to read, though.
Regarding null_square: If you want to make sure that null_square is passed
by reference, you can define it as a top-level val
Don't think that will work because c is of type Maybe Square, not Maybe
Cell.
One further question - if I define
let null_square = { cell = Empty, num = 0 }
let get_square maybe_square =
case maybe_cell of
Nothing: null_square
Just s : s
let get_letter maybe_square =
case maybe_squa
This should work
case c of
Just (Letter s) ->
s
_ -> ""
On Friday, 23 September 2016 03:50:19 UTC+2, Martin DeMello wrote:
>
> If I have the following code:
>
> type Cell = Empty | Letter String
>
> type alias Square =
> { cell : Cell
> , num : Int
> }
>
> and c : Maybe S
I don't think there's a more compact way to do that, no.
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